As previously noted, Months in the Earth Epic calendar serve a very different purpose than they do in the Gregorian or most twelve-month calendars. They revert to their ancient purpose, actually, to track the lunar cycles which are 29-30 days each. Rather than change the length of the month from a lunar cycle to a period that roughly equals one-twelfth of a solar year, the first of each Month is the midnight closest to the New Moon at UTC (Coordinated Universal Time, what used to be referred to as Greenwich Mean Time).
The length of time between New Moons determines the length of these Months–either 29 or 30 days. There are 11 or 12 Months that fall within a year, and then a transition month–Month 0–that starts on the last New Moon of the year and ends on the first New Moon of the new year. The subsequent moons are number 1 through 11 or 12.
Since many cultures have names for these moons, and there really is no universal set of names for the different moons/months, the Earth Epic Calendar simply uses number. Thus, the eleventh day of the second month would simply be 2.11.
Why track lunar months? Both scientific and anecdotal evidence show the Moon having a profound influence on the Earth. Earth’s Moon isn’t the biggest Moon in the Solar System, but it’s largest in size proportionately compared to the planet it orbits. We know that the Moon controls the tides of the oceans. Many people have also speculated that since human beings and most other living things are mostly made up of water, the Moon’s orbit would also have an impact on us as well. In any case, many people notice that things often seem a bit more chaotic during full moons.